[@leev18 Participant 10 years, 11 months ago]

<?php bbp_forum_id(); ?> is what I’m looking for.

I added <?php bbp_forum_id(); ?> to the <body <?php body_class();?>> in the the head.php of my wp theme.

So, now, I got this <body <?php body_class();?> <?php if(is_single()) : ?>id=”parent-forum-id-<?php bbp_forum_id() ?>“<?php endif; ?>>